function enter(pi) {
    if (pi.getQuestStatus(6110) == 1) {
        if (pi.getParty() != null) {
            if (!pi.isLeader()) {
                pi.playerMessage("Party leader consisting of two Warriors can decide to enter.");
            } else {
                if (pi.getParty().getMembers().size < 2) {
                    pi.playerMessage("You can make a quest when you have a party with two. Please make your party with two members.");
                } else {
                    if (!pi.isAllPartyMembersAllowedJob(1)) {
                        pi.playerMessage("You can't enter. Your party member's job is not Warrior or Your party doesn't consist of two members.");
                    } else {
                        var em = pi.getEventManager("4jrush");
                        if (em == null) {
                            pi.playerMessage("You're not allowed to enter with unknown reason. Try again.");
                        } else {
                            em.startInstance(pi.getParty(), pi.getMap());
                            return true;
                        }
                    }
                }
            }
        } else {
            pi.playerMessage(5, "You don...t have a  party. You can challenge with party.");
        }
    } else {
        pi.playerMessage("You can't enter sealed place.");
    }
    return false;
}